when most, it not all modern vehicles in the US use metric fasteners anyway since “forever”.
I certainly would prefer not to have a tool set that’s only half as useful.
Shout out to @TLAR for pointing out that even domestics have been using metric fasteners since at least 1999.
A search for brake caliper bolts for the Ford F150 confirms:
Most American and English vehicles have used an unholy amalgam of metric and inch pattern up until about 10-15 years ago. Example: everything in the power train (engine, trans, center diff, axles) of my 2000 Discovery 2 is inch, while everything in the body and chassis is metric.
Also, a lot of people buy auto kits as do-alls and having both is useful here in America because construction fasteners (lag bolts, etc) are still inch pattern.
Common engines like the LS are still inch pattern, as are many aftermarket parts like Dana axles.
That’s leaving aside all the old lawnmowers and other gas and electric power tools people fix routinely that are all inch pattern.
The use of metric sizes in American made cars has been around a lot longer than you may think. I own a 1931 Model A Ford, the car is 87 years ago. Henry Ford had the carburetor made in France and all the threads, bolts, and gas jets are in metric sizes. There is a large bolt in the bottom of the fuel bowl on this carburetor that allows one to clean out any sediment and dirt. Yes, you guessed it…it was a metric bolt. The car originally came with a kit of wrenches that fit most of the hardware on the car. But, the only wrench that would fit this metric bolt was a set of pliers. No wonder that this bolt was always rounded off.
Can I be given the option to buy a US customary system units tool set when I need it then, not when I buy a metric set because I only need a metric set? And either get to own a tool set that’s either twice as good or costs half as much.
@richmeyer That’s a cool story.
Pliers, a.k.a. bolt rounding device.